Have you ever considered the connection between missions and the return of Christ? Consider this statement by George Ladd
God alone, who has told us that this Gospel of the kingdom shall be preached in the whole world for a testimony unto all the nations, will know when that objective has been accomplished. But I do not need to know. I know only one thing; Christ has not yet returned; therefore, the task is not yet done. when it is done, Christ will come. Our responsibility is not to insist on defining the terms of our task; our responsibility is to complete it. So long as Christ does not return, our work is not done. Let us get busy and complete our mission.
Do you love the Lord’s appearing? then you will bend every effort to take the gospel into all the world. It troubles me in the light of the clear teaching of God’s Word, in the light of our Lord’s explicit definition of our task in the Great Commission (Matthew 28:18-20) that we take it so lightly. . .
Ladd is commenting on Matthew 24:14. I would encourage you to read it and consider what you are doing to hasten the coming of our Lord.